Data/hora: 15/06/2024 03:32:37

Biblioteca(s): | Embrapa Gado de Leite.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | B - 1
Data corrente: | 05/04/2010
Data da última atualização: | 16/05/2024
Autoria: | KOPP, M. M.; LUZ, B. K. da; SOUZA, V. Q. de; COIMBRA, J. L. M.; SOUSA, R. O. de; CARVALHO, F. E. F. de; OLIVEIRA, A. C. de.
Afiliação: | MAURICIO MARINI KOPP, CNPGL; VIVIANE KOPP DA LUZ, UNIVERSIDADE FEDERAL DE PELOTAS; VELCI QUEIRÓZ DE SOUZA, UFSM; JEFFERSON LUIS MEIRELLES COIMBRA, UNIVERSIDADE DO ESTADO DE SANTA CATARINA; ROGÉRIO OLIVEIRA DE SOUSA, UNIVERSIDADE FEDERAL DE PELOTAS; FERNANDO IRAJÁ FÉLIX DE, UNIVERSIDADE FEDERAL DE PELOTAS; ANTONIO COSTA DE OLIVEIRA, UNIVERSIDADE FEDERAL DE PELOTAS.
Título: | Methodology adjustments for organic acid tolerance studies in oat under hydroponic systems.
Ano de publicação: | 2009
Fonte/Imprenta: | Brazilian Archives of Biology and Technology, v. 52, n. 3, p. 531-539, 2009.
DOI: | https://doi.org/10.1590/S1516-89132009000300003
Idioma: | Inglês
Conteúdo: | The occurrence of anaerobic conditions in hydromorphic soils favors the development of anaerobic microorganisms that produce phytotoxic substances representing primarily by organic acids. The selection of promising oat (Avena sativa L.) genotypes for use in those situations requires field evaluations that can be cumbersome, making hydroponics a viable alternative. The objective of this work was to adjust a methodology to use in studies of tolerance to organic acids in oat under hydroponic systems. For such goal, the best germination system was determined in order to reduce the seedling initial establishment effects under hydroponics, the ideal concentration for screening genotypes and the best variable for stress evaluation. It was found that the most efficient germination system was "pleated germination paper" with small and husked seeds. The best concentration for studying organic acid tolerance ranged from 2.3 to 6.2 mM and the most suitable variable for the evaluation was root length.
Palavras-Chave: | Genetic breeding; Levels.
Thesaurus Nal: | abiotic stress; phytotoxicity.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/663165/1/Methodology-adjustments-for-organic-acid-tolerance-studies-in-oat-under-hydroponic-systems.pdf
Registro original: | Embrapa Gado de Leite (CNPGL)
Exemplares: | CNPGL - (16755-1) - UPC - AP - DD -  -  -  - DIS